John Davys Beresford (17 March 1873 — 1 February 1947) was an English writer, now remembered for his early science fiction and some short stories in the horror story and ghost story genres. His Hampdenshire Wonder was a major influence on Olaf Stapledon.
His father was a clergyman in Castor, now in Cambridgeshire near Peterborough. He was affected by infantile paralysis, which left him partially disabled. He was educated at Oundle.
After training to become an architect, he became a professional writer, first as a dramatist, and journalist. He combined a prominent place in Edwardian literary London with time spent in the provinces, in particular Cornwall where D. H. Lawrence had an extended stay in his Porthcothan cottage.
Elisabeth Beresford, children's writer and creator of The Wombles, is his daughter.